Unit 1 The Changing World Section A 2a-2d 课件 2026-2027学年人教版九年级英语上册

该初中英语课件围绕“The Changing World”主题，聚焦环境问题相关词汇（如sandstorms、water shortage）及目标句型（used to do等），通过听力任务（2a排序、2b提取信息）和对话练习（2d讨论解决方法）展开教学。课堂导入以Li Rui家乡交通、公共设施、环境的今昔对比为支架，连接旧知与新知，帮助学生构建知识脉络。 其亮点在于融合语言能力、思维品质与文化意识培养，如2a让学生对环境问题排序并阐述理由，锻炼分析评价能力；2d通过对话应用句型提升表达能力。采用对比分析、任务型活动等教学方法，结合思维导图和分层作业（基础层抄写、提高层短文、拓展层对话编写），既助力学生提升语言应用与环保责任感，也为教师提供丰富教学资源，提高教学效率。

Unit 1 The Changing World Section A 2a-2d Learning Objectives 通过本节课的学习，学生能够： 1.能掌握有关环境问题的单词和相关句型，根据听力内容完成任务表格（学习理解）。 2.能正确使用目标句型分析环境问题产生的原因（应用实践）。 3.能意识到环境保护的重要性，并提出改善环境问题的个人想法以及积极采取行动（迁移创新）。 It took half a day to reach the town. With the new road, it takes only nearly 40 minutes. Going to school by bus took nearly an hour. Going to school takes only 15 minutes. Review and say Li Rui’s hometown has changed greatly. Traffic (交通) used to travel far to see a doctor. has built a new hospital didn’t have good places for shopping now have a supermarket down the street Public facilities (公共设施) They are now covered with beautiful trees. Environment (环境) The hills were covered with sand. What problems did Li Rui’s hometown once face when dealing with the environmental problems? sandstorms /'sændstɔːm/ n. 沙尘暴 water shortage 缺水 farmland shortage /'fɑːmlænd/ /'ʃɔːtɪdʒ/ 耕地短缺 lack of technology /læk/ 缺乏技术 2 1 3 4 sandstorms water shortage farmland shortage lack of technology 2a Rank the following problems from 1 to 4, with 1 being the worst. Give your reasons. Water shortage — Rank 1 (the worst) Reason: If there is not enough water, people can’t live or grow food well. Sandstorms — Rank 2 Reason: Sandstorms hurt people’s health and damage crops. 2a Give your reasons. Farmland Shortage — Rank 3 Reason: And not enough land means not enough food. Lack of Technology — Rank 4 Reason: Technology is important, but people can still work without it. 2a Listen to the conversation between George’s father and Li Rui’s grandfather. What problems in 2a did they mention? 2b They mentioned two problems—sandstorms and farmland shortage. Past Action Present How has the environment affected local lives? 2b There used to be __________ all the time, and the ______ were getting smaller and smaller. Locals worked by ___________. Locals found a bush. It had ________ roots that could _________the soil together. They began planting it in sandy ________, with the government’s support. They had __________ to help. The corn fields are _________. They have planted many bushes and _________ since then. They are __________sandstorms now and the environment is getting _________. It has improved local lives. 过去 措施 现在 Past • There used to be ______________ all the time, and the __________were getting smaller and smaller. • Locals worked by _______________. Action • Locals found a bush. It had _______________ roots that could _____________ the soil together. • They began planting it in sandy ___________, with the government’s support. • They had _____________________ to help. Present • The corn fields are ________________. • They have planted many bushes and ________________ since then. • There are ___________ sandstorms now and the environment is getting _________. • It has improved local lives. Listen again and fill in the table. How has the environment affected local lives? 2c sandstorms fields 从那以后 在政府支持下 hand long hold areas machines huge trees fewer better Bob: I’m amazed by how green your hometown has become! Grandpa: Have you seen the corn fields outside of the town yet? Bob: Yeah! They’re huge! Grandpa: There used to be sandstorms all the time, and the fields were getting smaller and smaller. Then, after one big sandstorm, we decided to do something. Bob: What did you do? Grandpa: We found a small bush. It had long roots that could hold the soil together. We began planting it in sandy areas. The government provided support too. Bob: Wasn’t it difficult to plant so many bushes? Grandpa: Yes, it was. At the beginning, we worked by hand. Later, we had machines to help. We have planted many bushes and trees since then. There are fewer sandstorms now and the environment is getting better. It has also improved our lives. Everyone has become richer and happier. Past Action present Listen again and check the answers. past present sandstorms fields were getting smaller worked by hand plant with machines corn fields action a small bush with long roots hold the soil together fewer sandstorms The environment is getting better It has also improved our lives. Everyone has become richer and happier. A: The area used to be covered with sand. B: What did they do to solve this problem? A: They planted bushes and trees. The land has become ... Discuss how the problems in 2b were solved. 2d everyone’s efforts + = government’s support A: The area used to be covered with sand. B: What did they do to solve this problem? A: They planted bushes and trees. The land has become useful. Local people can grow vegetables and fruits here now, and their life is getting better and better. 活动示例: What can we learn from the changes in Li Rui’s grandpa’s hometown? Every big change starts with a small step. The future of our hometown is in our hands. 词组默写。 1. 带来;引起  _______________________ 2. 被……覆盖_______________________ 3. 过去常常做某事_______________________ 4. 不仅如此_______________________ 5. 到目前为止  _______________________ 6. 从那以后_______________________ 7. 固土，保持水土  _______________________ 8. 改善某人的生活_______________________ 9. 对…… 感到惊叹  _______________________ 10.决定做某事_______________________ 11. 手工，用人力  _______________________         12.很久，很长时间_______________________ bring about be covered with used to do sth not only...but also... so far since then hold the soil improve sb’s life be amazed at decide to do sth by hand for a long time 用括号内所给词的适当形式填空。 1.Great changes __________________ (take place) in Li Rui's hometown over the years. 2.Li Rui's father ___________________ (not visit) his hometown since 20 years ago. 3.In the past, it __________ (take) half a day to reach the town, but now it only takes an hour. 4.They used to __________ (travel) far to see a doctor, but now there is a new hospital in the town. 5.We began planting it in sandy areas. The government __________(provide) support too. have taken place hasn’t visited took travel provided 2. Whose birthday is it? Homework 1. 基础层：抄写全部生词；跟读 1c、2c 听力音频 2 遍。 2. 提高层：借助课堂思维导图，写一篇 60 词左右短文，介绍 李锐家乡的变化。 3. 拓展层：思考 3 条改善环境的办法，仿照 2d 格式编写完整 英文对话。 谢谢观看 THANKS null 65147.99 $